I do not want to get a new house key. Can thos model be rekeyed to my house key i jabe now? Can i di it myself or do i need to bring it somewhere?

I replaced my 20 or so year old Kwikset non Smart Key deadbolts with new Kwikset Smart Key deadbolts and was able to set them to use rhe old keys. It seemed the old key just needs to be match the shape (cross section) of the new key. A quick check would be to take your old key to Lowes and see if your key will fit into a Smart Keys key slot. Mine did and the resetting worked fine. This may also work with non Kwikset brands if the keys have matching cross section. Would need to try the key slot test.

Kwikset Model # 913TRL 15 UL comes with the SmartKey technology that will allow rekeying the lock as needed without the use of a locksmith. SmartKey locks are identified with a small slot on the left side of the keyhole and can be re-keyed at the consumer level by following the re-keying instructions, but is not compatible with other brands. Please contact or visit your local Lowe’s special order counter for pricing and shipping options.